Question

okay my daughter is trying to figure out her math she is a freshman and don't understand it if someone can please explain to her how to do it it is match each equation to its slope and y -intercept

Answer 1

Okay

Answer 2

do u have an example of an equation ?

Answer 3

yes y = -3/4x +5

Answer 4

The slope is -3/4 and the y-intercept is 5

Answer 5

or x-y=6

Answer 6

ok. so the y-intercept is 5. the slope is -3/4.

Answer 7

http://www.youtube.com/watch?v=Zj-9Zc9yKYU

Answer 8

x-y=6 can be rearranged as y=x-6, so the slope is 1 and the y-intercept is -6

Answer 9

so it basically means that u start on positive 5 on the y-axis to graph. From there, you would go down 3 over 4. rise over run. it has a negative slope.

Answer 10

does it help, martyden?

Answer 11

i still dont understand .

Answer 12

ok. would it help for me to draw it?

Answer 13

ok, my turn now.
Where are you stuck?

Answer 14

-4x-y=1

Answer 15

ok. so first step is move the -4x over. What u really want to do is isolate the y. so -y=1+4x, divide by -1 to get y alone. so y=-4x-1.

Answer 16

the slope is -4. the y-int is -1.

Answer 17

Loook now.

Answer 18

would it help to graph it?

Answer 19

no

Answer 20

20x=4y-4

Answer 21

To graph, remember:

when x intercpts y = 0
when y intercpts x = 0

Substitute to solve:

the equation you have is: -4x-y=1

Answer 22

-4y=-20x-4. get the y alone by dividing by -4. so y=5x+1

Answer 23

the y-int is 1. the slope is 5.

Answer 24

-7x+y=8

Answer 25

get the y alone. just add 7x. y=7x+8 slope is 7 y int is 8

Answer 26

when y-intercpts 0 = 0

-4x-y=1
-4(0)-y = 1
-y = 1
y = 1

Now the Line will cut on y-axis @ 1.

same as with x.
when x interpts y = 0
-4x-y=1
-4x -(0) = 1
-4x = 1

x = -1/4

The line will cut the x axis on -1/4

Answer 27

-x+y=13

Answer 28

to isolate y, add x. y=x+13. the y int is 13 slope is 1

Answer 29

7x=4y+25

Answer 30

PLEASE ma'am, Post one your problems one by one to avoid confusion for youself.

Answer 31

yourself*

Answer 32

Im Not Confused .

Answer 33

LOL, then it's ok.

Answer 34

To graph, remember:

when x intercpts y = 0
when y intercpts x = 0

Answer 35

to isolate y, u need to move 4y and 7x. so -4y=-7x+25. y=7/4x-25/4

Answer 36

you just want to grapph this out?

Answer 37

i already asked her that

Answer 38

No I Dont Need A Graph .

Answer 39

So What Does The Slope Equal ?

Answer 40

Slope = 7/4

Answer 41

well basically, what you really need to remember is to isolate y to obtain an equation y=mx+b. the # in front of x is your slope.

Answer 42

the b value is your y-int

Answer 43

Can You Reduce 7 / 4 ?

Answer 44

Never.